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“我国的挖泥船先后走过了整船进口、国外设计国内建造、国内自主设计建造等阶段的曲折弯路,经历了从无到有,从有到强的几十年艰难历程。
世界大桥看中国,中国大桥看贵州。北盘江大桥、鸭池河大桥、长岩大桥、坝陵河大桥……据不完全统计,世界前100名的桥梁,有80多座来自中国,而
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